| // Copyright 2023 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| |
| #include <pw_log_tokenized/config.h> |
| #include <pw_log_tokenized/handler.h> |
| #include <pw_log_tokenized/metadata.h> |
| #include <pw_span/span.h> |
| #include <pw_sync/interrupt_spin_lock.h> |
| #include <pw_tokenizer/base64.h> |
| #include <zephyr/logging/log_core.h> |
| |
| namespace pw::log_zephyr { |
| namespace { |
| |
| // The Zephyr console may output raw text along with Base64 tokenized messages, |
| // which could interfere with detokenization. Output a character to mark the end |
| // of a Base64 message. |
| constexpr char kEndDelimiter = '#'; |
| |
| sync::InterruptSpinLock log_encode_lock; |
| |
| } // namespace |
| |
| extern "C" void pw_log_tokenized_HandleLog(uint32_t metadata, |
| const uint8_t log_buffer[], |
| size_t size_bytes) { |
| pw::log_tokenized::Metadata meta(metadata); |
| |
| // Encode the tokenized message as Base64. |
| const InlineBasicString base64_string = |
| tokenizer::PrefixedBase64Encode<log_tokenized::kEncodingBufferSizeBytes>( |
| span(log_buffer, size_bytes)); |
| |
| if (base64_string.empty()) { |
| return; |
| } |
| |
| // TODO(asemjonovs): https://github.com/zephyrproject-rtos/zephyr/issues/59454 |
| // Zephyr frontend should protect messages from getting corrupted |
| // from multiple threads. |
| log_encode_lock.lock(); |
| // _is_raw is set to 0 here because the print string is required to be a |
| // string literal if _is_raw is set to 1. |
| Z_LOG_PRINTK(/*_is_raw=*/0, "%s%c", base64_string.c_str(), kEndDelimiter); |
| log_encode_lock.unlock(); |
| } |
| |
| } // namespace pw::log_zephyr |